Festo VTSA Series, Manual, Page: 119 / 166

5. Maintenance and conversion
5−11
Festo P.BE−VTSA−44−EN en 0601a
Exhaust cover with metal ex
haust silencer type U−½−B Exhaust cover with plastic ex
haust silencer type U−½
Valve slot with vertical
stacking components P pressure regulator plate
B pressure regulator plate
AB pressure regulator plate
vertical pressure shut−off plate
vertical pressure supply plate
throttle plate A pressure regulator plate
Tab.5/3: Combination possibilities of exhaust silencers and neighbouring vertical stak
king components
Please note
Reversible pressure regulator plates may only be com
bined with valves which can be operated reversibly.
Valve location with vertical pressure shut−off plate:
The pilot air for the valve is branched internally from
channel 1 in the vertical pressure shut−off plate, even if
the valve terminal is operated with external pilot air (see
appendix B, section B.1). If all the valve locations on the
VTSA valve terminal are fitted with vertical pressure
shut−off plates, it will not be necessary to supply the
valve terminal with external pilot air. The operating pres
sure at which the valve terminal is operated must in this
case lie within the range of the required pilot pressure
(see apppendix A, Tab.A/4 and Fig.A/1).
The combination of reversibly operated valve terminals
with the following components for vertical stacking is
not permitted:
reversible pressure regulator plates
throttle plates
vertical pressure shut−off plates
vertical supply plates.